As part of a larger site called "Getting started in Chemistry," this site examines significant figures and claims to teach the user "how to avoid telling lies with numbers."

[Free Registration/Login may be required to access all resource tools.] Provides a definition of significant figures and lists rules for proper designation of values.

[Free Registration/Login may be required to access all resource tools.] Determining significant figures and rounding.

This site from General Chemistry Online provides a mnemonic device you may not have seen to help remember the rules for significant digits called the Atlantic-Pacific Method. Also includes a comparison between this rule and the...

An interactive exercise drill regarding significant figures.

Course website, developed by a community college instructor, uses riddles, real-world examples, colorful pictures, and explanatory text to introduce learners to the concept of significant figures in science. With a selection of...

This audio book, narrated by author Mark Bishop, describes how to determine significant figures in chemical calculations. Many examples are given to help figure out how to round the answers. Also find links to tutorials and power points...

This introduction to chemistry class reviews some major concepts to help prepare students for a high school chemistry course.

With the subtitle, "stuff you should know before delving too far into Chemistry," this site examines a range of six topics to provide the user with a broader understanding of chemistry.

[Free Registration/Login may be required to access all resource tools.] In the following online lesson students will learn to distinguish between accuracy and precision in measurements and to also calculate the percent error of a...

Learn step by step instructions on how to express numbers in scientific notation. Discover the rules to scientific notation and view several examples of numbers being expressed in scientific notation.

Using the Virtual Laboratory design, students perform an experiment to determine the concentration of the unknown HCl solution to four significant figures.

Use the Virtual Laboratory to standardize an unknown NaOH solution (approximately 0.2M) to four significant figures via titration with 25.00 mL of a KHP standard solution.

[Free Registration/Login may be required to access all resource tools.] Students explore a science investigation learning module including conversions, error, and uncertainty in scientific measurement.

Line drawing of a basketball player in action.

Drawn portrait of Bill Gates.

Drawn portrait of Jay Leno.

Drawing of an in-ground swimming pool.